POSify lets merchants capture important product and cart customizations — like engravings, membership codes or personalized messages — during the Shopify POS checkout. Staff can quickly select products, provide the customization, and add them to the cart in just three taps. Customizations are stored as line item properties, ensuring visibility in receipts, and can be searched for in Shopify Admin. Staff can also use POSify to capture post purchase information after a sale has been made via POS.